980-nm High-Power Low-Divergence VCSELs Achieved by Optimization of Current Density Distribution

	980-nm High-Power Low-Divergence VCSELs Achieved by Optimization of Current Density Distribution
其他题名	论文其他题名
	Zhang X.; Ning Y. Q.; Zeng Y. G.; Zhang J. L.; Fu X. H.; Qin L.; Liu Y.; Tong C. Z.; Wang L. J.
	2012
发表期刊	Ieee Journal of Quantum Electronics
ISSN	0018-9197
卷号	48 期号:1 页码:42-48
摘要	In this paper, we report the design and fabrication of 980-nm vertical-cavity surface-emitting lasers and arrays that provide high output power and low divergence angle without any additional collimating optics. The influence of the structure of the contact on the current density distribution inside the active region was analyzed using the 3-D finite-element method. Uniform current distribution is achieved by optimizing the diameter of the p-contact, and the consequent improvement in beam divergence and thermal behavior is shown. A low divergence angle of 5.4 degrees is obtained for a single device with continuous-wave (CW) power of 1.46 W at room temperature. The 8x8 array shows a divergence angle of 10.2 degrees at 4 A with a CW power of 1.95 W. In addition, the measured results were compared with the results from devices without optimization of current density distribution.
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/24649
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Zhang X.,Ning Y. Q.,Zeng Y. G.,et al. 980-nm High-Power Low-Divergence VCSELs Achieved by Optimization of Current Density Distribution[J]. Ieee Journal of Quantum Electronics,2012,48(1):42-48.
APA	Zhang X..,Ning Y. Q..,Zeng Y. G..,Zhang J. L..,Fu X. H..,...&Wang L. J..(2012).980-nm High-Power Low-Divergence VCSELs Achieved by Optimization of Current Density Distribution.Ieee Journal of Quantum Electronics,48(1),42-48.
MLA	Zhang X.,et al."980-nm High-Power Low-Divergence VCSELs Achieved by Optimization of Current Density Distribution".Ieee Journal of Quantum Electronics 48.1(2012):42-48.

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Zhang-2012-980-nm Hi（531KB）			开放获取	--	浏览下载